How To Install libqca2 on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libqca2 on Ubuntu 18.04.
What is libqca2
libqca2 is:
The Qt Cryptographic Architecture (QCA) provides a straightforward and cross- platform API for a range of cryptographic features, including SSL/TLS, X.509 certificates, SASL, OpenPGP, S/MIME CMS, and smart cards.
There are three methods to install libqca2 on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libqca2 Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libqca2 using apt-get by running the following command:
sudo apt-get -y install libqca2
Install libqca2 Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libqca2 using apt by running the following command:
sudo apt -y install libqca2
Install libqca2 Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libqca2 using aptitude by running the following command:
sudo aptitude -y install libqca2
How To Uninstall libqca2 on Ubuntu 18.04
To uninstall only the libqca2 package we can use the following command:
sudo apt-get remove libqca2
Uninstall libqca2 And Its Dependencies
To uninstall libqca2 and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libqca2
Remove libqca2 Configurations and Data
To remove libqca2 configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libqca2
Remove libqca2 configuration, data, and all of its dependencies
We can use the following command to remove libqca2 configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libqca2
References
Summary
In this tutorial we learn how to install libqca2 package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
